The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 1988
Filed:
Apr. 15, 1986
Applicant:
Inventors:
Kiyoshi Sukai, Tokyo, JP;
Keizo Ichii, Toyohashi, JP;
Shigeru Takane, Toyohashi, JP;
Takayuki Yoshikawa, Nagoya, JP;
Hiroshi Inada, Nagoya, JP;
Takao Yamada, Nishikamo, JP;
Assignees:
Noritake Co., Limited, Aichi, JP;
Mitsubishi Rayon Engineering Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
366 79 ; 425183 ; 425207 ; 425209 ; 366318 ;
Abstract
The outer periphery of a screw and the inside of a barrel of a screw type extruding or kneading machine are made of ceramics, to improve the abrasion and heat resistances thereof, so that the screw and the barrel will operate for a longer life time even if a hard material or a material containing a hard material is worked.